摘要:⑴2NaBr+Cl2= 2NaCl+Br2,6NaOH+3Br2=5NaBr+NaBrO3+3H2O, 5NaBr+NaBrO3+3H2SO4= 3Na2SO4+3Br2+3H2O ⑵ 0.0084% 需海水的质量为15384.6 t

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